Getting close to 1st harvest...now foliage is looking crispy at the edges..HELP! I do

Flushing, flushes out available salts, damages microbial activity, and can temporarily drowns roots. This is why your plants stop growing for a few days after you flush them.
In general, you dont really want to flush unless you have a build up of fertilizer and your plants are burning.
If you use a fertilizer that says 2-3-4 for example, you dont need to really flush, just feed plain water for a week or two before harvest and your fine.
If you use a fertilizer that has high numbers like 12-22-30, you need to flush before havest since the fertilizer is so strong.
From my experiance, you actually get better results by flushing really well like 10 days before harvest, then just let your plants dry out and try to harvest when your soil is dry and your plants are just about to start wilting. (but this is my opinion)

DONT use nitrozym!
DONT add any fertilizer
You can add some superthrive if you want, but its best to just leave your plants alone. Continue feeding them 1/2 strength of what you should be feeding them and slowly bring the PPM back to 1100.
Your plants have a good 3-4 weeks left if the light leak didnt mess them up. (Just so you know, light leak will significantly delay flowering and reduce harvest weight, so for future grows, make sure you dont have ANY light leaks)
 
what signs of over watering do you see..if anything, thought I wasnt watering enough (till the cloth pots leaked out the bottom, etc) so the other day I gave them a very good watering/somewhat a flush, I normally dont water until it floods out the bottom, but the advanced #4 was feeling a bit hard down towards the bottom of the 10 gal pots

Watering properly is actually very important. Your not trying to water the soil so your plant can suck it up, your watering the soil to keep the it moist so the microbes in the soil stay alive and active, these microbes are what break down the fertilizer so your plant can take them in. You want your soil to be as moist as a damp kitchen sponge most of the time and you need to dry the soil out a few times a month aswell. Just dumping a gallon of water over them every other day only works if they are growing outside in the earth.
And clawing is from over fertilizing, not just excess nitrogen.
 
By the looks of your pictures, you are only 3 weeks into flower roughly. Your light leak hampered your plants cycle tremendously, and you will have a sub par yield with potential of hermi plants as well. Just a heads up!

ps. you are nowhere near harvest time, and lay off the nutes! Feed @ 50% for next 2 feedings.
 
going to go take some current bud pix to post so ya can see where I am at...
 

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3 weeks into flower is all they look????
oh my!
OK...so replace lost microbials with kangaroots & microbe tea, feed 1/2 strength for next 2 feeds (650 ppm) and this should resolve my burning leaves, ie: make it so it don't spread?
Thank each of you for your time and input...hell I thought I was only a couple weeks away, sheeesh.
No wonder my "white widows" aren't covered in white, is 50% RH too humid for developing thick resinous buds? That is as low as I can get it w/ the current dehumidifier...will have to buy a stronger one, maybe keep it in the 40's?
 
by my calendar, I flipped to 12/12 on MARCH 3rd!!!! Didn't realize there was a slight light leak, moved them to an outbuilding week of March 26th and most were showing some flowers by then..sooo messing with the light set them back that 2+ weeks and then some it seems, some of these plants are loaded with buds but I kept wondering why the werent filling in the whole stem/branch,and NOT getting as crystally as they should be looking.. just some here & some there..I have a 6 foot bubblelicious with 7 colas that is already heavy with flowers, should have used a tomato cage or something on that monster.It is supposed to take 8-9 weeks...so 4-5 left! Holyy cow!
 
no, they are in sunshine advanced #4, and I feed every other watering..so 2x a week, on a every 3 day cycle.feed-water-feed.I did a pretty good flush, some are in 10 gal root pouches,the rest in 5 & 7 gal pots, between the 9 plants I used around 30/gal to flush them.
 
Hopefully I didn't mess up the gorgeous healthy symbiosis I had going in the roots :-( I have beneficial bacteria, would flushing as I did kill off the good bacteria colonies?
If so when I do give them the next 1/2 strength feed, should I add oregonism xl (root culture bennies) and then follow that with some molasses on the following h20 only day?
I have given molasses 2x but noticed a huge fly hanging around the soil, killed it but I don't need them laying larvae in the mix..
Or is that ok, will they not hurt the plants?
Thanks for all the input guys, this gal appreciates all the help I can get, this is my 3rd attempt, first time I have made it to flowering, and hopefully 1st awesome harvest...
 
I was getting conflicting info on when you actually start counting flowering days, when ya flip, or when ya first notice flowers...like everything it seems with this plant, there are as many opinions as strains, or more!!!
 
By the looks of your photos, you are growing a dominant sativa strain. You should expect another 8 weeks til you should even think about harvesting by the looks of your bud structures.
 
Dont worry about days.. They will be done , when they are done.. They look great :) but your are about mid way
 
hmm..I am growing many diff strains, white widow, thc snow, bubblelicious romulan x grapefruit and NYCD. Almost every one of them is a different strain, they all look a lot alike to me, too!! Except the nycd, its shorter and the buds are fatter...and 2 are thc snow, which are ONLY supposed to take 6-7 wks flowering...the others 8-9, but...but I have been flowering for 4-5 weeks!!(actually started March 3rd) but had a light leak...
 
this pic on my avatar, thats one of my girls like 4 wks ago...so shes def over 4 weeks into flowering
it's the "giant bubblelicious" it's about 4 foot across and 5.6 feet high, 7 colas
 
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